Series 65E EN54 Conventional Heat Detectors, 55000-121IMC, 55000-126IMC, 55000-131IMC and 55000-136IMC

The Context Plus Series 65E conventional heat detectors are designed for use in conventional fire alarm systems and are available in several thermal classifications to suit different operating conditions.

The detectors monitor temperature using thermistor networks and provide a voltage output proportional to the surrounding air temperature.

The range includes rate-of-rise models together with a fixed-temperature CS model without rate-of-rise operation.

Available Models:

• 55000-121IMC — A1R classification, with a maximum application temperature of 50°C and maximum static response temperature of 65°C.
• 55000-126IMC — BR classification, with a maximum application temperature of 65°C and maximum static response temperature of 85°C.
• 55000-131IMC — CR classification, with a maximum application temperature of 80°C and maximum static response temperature of 100°C.
• 55000-136IMC — CS classification, with a maximum application temperature of 80°C and maximum static response temperature of 100°C, without rate-of-rise operation.

Key Features:

• Conventional heat detectors from the Series 65E range.
• EN54-compliant range.
• Available in four thermal classifications.
• Wide operating voltage range from 9 to 33V DC.
• Flashing LED during standby.
• Red LED alarm indication.
• Remote indicator connection.
• Two-wire polarity-insensitive supply.
• Flame-retardant polycarbonate housing.
• Nickel-plated stainless-steel terminals.
• IP23D protection rating.
• Operation is unaffected by atmospheric pressure according to the catalogue.
• Suitable for service rooms, storage areas, kitchens and locations with different thermal conditions.

General Technical Specifications:

• Supply voltage: 9 to 33V DC.
• Power-up surge current: 55µA at 24V DC.
• Quiescent current: 55µA at 24V DC.
• Alarm current: 52mA at 24V DC.
• Alarm LED current: 4mA.
• Operating temperature: -20 to +90°C.
• Humidity: 0% to 95%.
• IP rating: IP23D.

Compatible Bases and Accessories:

• 45681-200IMC — Standard Series 65E detector base.
• 45681-245 — Standard relay base.
• BF318 — Remote LED detector indicator.